Anyone have experience with this tuner?

http://www.sportec.ch/de/home.htm

 

Rassel,

I know them and they are very good. They have Gunther in their ranks and very good mechanics as well, if the bill is not prohibitive. You can check out Manthey Motors or RS Tuning as well if you are willing to spend big bucks.

 

What concerns me is that they use some form of K16 turbos to reach 550hp.
I PRESUME they are modified K16's. Still, it's a lot of hp for that Turbo.

 

I am relatively new to the Turbo forum, I keep seeing information regarding different turbos, can you shed some light on the different models used by different tuners and the expected benefits.
Thanks

 

Rassel, I agree. My proposed package was based on a K24s and the K16s will unlikely be running efficiently at those hp levels and will generate heat. They must know what they are doing I guess.

LAT, your best man is Kevin, it is actually a very interesting topic, and I would suggest you post it separately. Maybe Kevin could share some 101 about the main differences between different turbos, Garretts, KKK, and what not..pros and cons on reliability etc... I know some but would not like to misinform you.

 

Lat;

We typically have 4 turbo options for our cars.. K16's, K24's, Garrett GT25/28, and Garrett T3/T4's.. I will state that for the most part, Garrett turbochargers are disposable units.. In 1985, as engine technology started switched to multiple valves, and higher outputs per liter. Garrett was having numerous failures with it's T3 turbochargers, they fixed this to a degree by switching over to a water cooled bearing housing.. Installing Garrett turbo's in our cars require plugging the H2O cooling ports, or resorting to the earlier pre 85 designs.

KKK turbochargers have the upper hand in industrial air-cooled engines such as Deutz.. KKK has opted for oil cooling of the high temp areas in the turbochargers.. Infact there is a nozzle/port that cools the turbine sealing rings on every K16/24... The basic bearing housing structure of the K16 and K24 is similar.. 993TT K24 have provisions for turbine wheel speed sensors! However, late replacement units use the latest designed K16 bearing housing... Infact, all of the 996TT K16's and K24's share the same bearing housing, bearings, and thrust components..

The reason why I like K16's is because of the ability to spool quickly. I have posted this link
http://www.racetek-engineering.com/images/Dyno01.jpg
This was posted on the 60-130 thread, PLEASE let's not get into a debate over the numbers (insert the values that you want to see or believe), it is a very good representation between modified K24's, and very large K16's.. The K16's will out spool and thus build boost quicker and faster.. The funny thing is, most people that use Garrett's, the turbine wheels are SMALLER than K16's. The Ball bearing GT28's have about 2mm smaller turbine wheels. Many 996TT conversions use this turbo. I have Dynojet sheets at over 607HP rear wheels (again plug the number that you want to see/feel/believe) from this small turbocharger.. Anything that can be done with a Garrett, can be done in a KKK, yes it will be more expensive, but it will last longer, and you won't have to swap housings and weld Garrett flanges to your headers.. I have posted in the past the differences between GT1's and K24's.. For most people with STOCK engines GT1's and my Stage 2 will run them right up to the threshold of rebuilding your engine.. The Stage 2 will provide 1.8 bars of boost @ 3000RPM's. Most people do not want to tear into there engines and install flame rings and Carrillo rods, and twin plugs to go to the next level..

 

Kevin,

Thanks for the explanation.

What would be a fair comparison between the life span of a KKK and a Garrett? I went with Garretts knowing the consequences. They are also cheaper turbos.

 

Hey Jean, good to see you here.
Kevin, are the GT1's the same as zero clearence turbos?


Sorry to highjack the thread.

 

Kevin,
thanks, much appreciated, I started a new post which is no longer necessary and I will see if I can delete it.

Cheers

 

Jean, I've lost a set of T3/T4's on a dyno due to heat.. I'd suggest that after your engine is broke-in and all the mapping is done to rebuild your set before it is shipped.. The cost vs shipping and duty will pay for a rebuild! Make sure that you have a 360 degree thrust bearings!!! Make sure that the sealing rings are gapped tighter.. Lifespan Ratio is 2 to 1.. Oil control is the key.. 3K allows more volume of oil to pass through the turbocharger to provide cooling and lubrication.. To get a Garrett to "not leak" one has to restrict the oil flow with orfices, this shortens the lifespan.. Hey I like Garrett product, on my domestic V8's I'd run Garrett's.. You just won't see the EGT's that we are seeing with Porsche engines.. The pictures that I've posted shows one of my K27 High Flows done for a Rennlister's RUF and one of my BIG Garretts...

How about installing these bad boys that will crank out 160lbs of air per minute with enough air to pull the studs right out of your engine case

03" Any turbocharger that I make can be Zero Clearanced.. It is a process of increasing compressor wheel/housing efficiency.. Adding 15% to a turbocharger reduce lag and makes boost alot faster..

Edit: Sorry for the big pics.. Should put this in the other thread..

 

Kevin ,
Can you zero clearance Garrett's ? My impression was that it came from KKK. Thanks in advance.

 

Pole, I can zero clearance any turbocharger. However, it is best to start with a very good bearing and thrust system like KKK. Z/C is not for the faint of heart, it requires an extensive break-in or your will risk stuffing the compressor wheel into the compressor housing!

 

Kevin,

You know that pornogr*fy is not allowed on the forums, right?! I dont want to end up with a heartproblem when I open threads like this. So next time you post pictures of hot stuff like this you'll have to either post it in smaller pictures or draw it by hand....

 

kevin-
Whats the difference between GT1 turbos and hybrid k16/24? And, are GT2 turbos normal k24s? if you have already explained this, please post a link as i seemed to have missed it. thanks.
rob

 

Rob;

GT1=K16/K24... STREET GT2's ran K24's.. However, race GT2 such as the EVO ran K26's!!!